We stopped at Long Branch and caught the GO train back to Burlington. We were already at 100 km for the day, so to close the circle would have been another 30.
So, I am not sure if the kms listed (173) is entirely accurate but in total for us our two day ride would have been 210km at least, and that was with us not taking all the suggested detours.
I would totally recommend a ride from Acton to Georgetown and then up the trail etc with maybe an overnight in Brampton, continuing to Long Branch or Port Credit or even Burlington (or Toronto if you want to head the other direction of course.) This day would have appeal to cyclists with varying skill and drive.
Had a great time. Would do day 2 again and really appreciated learning about these “new to us” trails!
Check out the Caledon-Lakeside route and download GPS files